Multiple WSO2 products have been identified as vulnerable due to an XML External Entity (XXE) attack abuses a widely available but rarely used feature of XML parsers to access sensitive information.
CVE-2023-6836
This medium-severity CVE scores 4.6 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 4.6(low)
- EPSS
- 38.2%
- KEV
- Not listed
Published
December 15, 2023
Last Modified
June 17, 2026
References (2)
- ed10eef1-636d-4fbe-9993-6890dfa878f8https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2021/WSO2-2020-0716/
- af854a3a-2127-422b-91ae-364da2661108https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2021/WSO2-2020-0716/
Affected Packages
(6 across 1 ecosystem)
Maven(6)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.wso2.am:wso2am | — | 4.0.0-beta | — |
| org.wso2.carbon.analytics-common:org.wso2.carbon.event.input.adapter.core | 1.0.0 ... 5.2.19 (86 versions) | 5.2.23 | — |
| org.wso2.carbon.commons:org.wso2.carbon.ntask.core | 4.3.0 ... 4.7.22 (102 versions) | 4.7.24 | — |
| org.wso2.carbon.event-processing:org.wso2.carbon.event.processor.core | 2.0.1 ... 2.2.6 (50 versions) | 2.2.12 | — |
| org.wso2.carbon.governance:org.wso2.carbon.governance.common | 4.5.0 ... 4.8.9 (51 versions) | 4.8.13 | — |
| org.wso2.carbon.registry:org.wso2.carbon.registry.extensions | 4.6.11 ... 4.7.28 (41 versions) | 4.7.31 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-12 05:45 UTCEPSS rescore
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- 2026-07-11 08:26 UTCEPSS rescore
- 2026-07-09 19:08 UTCEPSS rescore
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- 2026-06-25 13:48 UTCEPSS rescore
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- 2026-06-24 19:31 UTCOSV refresh
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-24 06:34 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
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- 2026-06-23 21:31 UTCEPSS rescore
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- 2026-06-07 20:16 UTCOSV refresh
- 2026-06-07 15:24 UTCEPSS rescore
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- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-23 10:07 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-611
Frequently asked(5)
What is CVE-2023-6836?
When was CVE-2023-6836 disclosed?
Is CVE-2023-6836 actively exploited?
What is the CVSS score of CVE-2023-6836?
How do I remediate CVE-2023-6836?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-6836
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